.top{
    /*position: absolute;*/
    width: 90%;
    margin:10% 5%;
    background-color: #ffffff;
    box-shadow: 0px 0px 27px 1px
    rgba(255, 133, 11, 0.22);
    border-radius: 10px;
    padding: 10px;
}
.top>p:first-child{
    font-size: 13px;
    margin: 10px 0;
}
.top>p:first-child>span{
    font-size: 15px;
    color: #ff850b;
}
.top>div{
    border: 1px solid #999;
    border-radius: 10px;
    width: 100%;
    height: 40px;
    font-size: 21px;
    margin-top: 5px;
}
.top>div>input{
    width: 100%;
    height: 100%;
}
.bind-box{
    position: absolute;
    width: 90%;
    left: 5%;
}
.bind-box>dl{
    display: flex;
    align-items: center;
    height:50px;
    border-bottom:1px solid #e5e5e5;

}
.bind-box>dl>dt{
    width:95px;
    color: #000;
    flex-shrink: 0;
}

.buf_item dd input{
    width:100%;
    height:100%;
    font-size: 16px;
}
.buf_item  button{
    background-color: #000;
    border-radius: 5px;
    width: 140px;
    height: 25px;
    color: #fff;
}
.btn{
    position: absolute;
    top: 75%;
    left: 5%;
    width:90%;
    height: 40px;
    color: #fff;
    font-size: 16px;
    background-color: #000;
    border-radius: 5px;

}